HT206886: How to get macOS Sierra

Learn about How to get macOS Sierra
roxanngoo

Q: Upgrade to El Capitan error message

Everytime I try and install El Capitan I get this message:We could not complete your request. There was an error in the App store. Please try again later. (4) Unknown error.

iPhone 4S, iOS 6.1.3

Posted on Nov 1, 2015 4:15 PM